<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data="goodslist" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="110px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="90px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="170px">
                    <template slot-scope="scope">
                        {{ scope.row.add_time | dateFormat }}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="120px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="editById(scope.row.goods_id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[10, 15, 20, 25]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total" background>
            </el-pagination>
        </el-card>

        <!-- 修改商品的对话框 -->
        <el-dialog title="修改商品" :visible.sync="editGoodsDialogVisible" width="50%" @close="editGoodsDialogClosed">
            <el-form :model="editGoodsForm" :rules="editGoodsFormRules" ref="editGoodsFormRef" label-width="80px">
                <el-form-item label="商品名称" prop="goods_name">
                    <el-input v-model="editGoodsForm.goods_name"></el-input>
                </el-form-item>
                <el-form-item label="商品价格" prop="goods_price">
                    <el-input v-model="editGoodsForm.goods_price"></el-input>
                </el-form-item>
                <el-form-item label="商品数量" prop="goods_number">
                    <el-input v-model="editGoodsForm.goods_number"></el-input>
                </el-form-item>
                <el-form-item label="商品重量" prop="goods_weight">
                    <el-input v-model="editGoodsForm.goods_weight"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button type="primary" @click="editGoodsInfo">确 定</el-button>
                <el-button @click="editGoodsDialogVisible = false">取 消</el-button>
            </span>
        </el-dialog>
    </div>
</template>
  
<script>
export default {
    name:'Goods-test',
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0,
            editGoodsDialogVisible:false,
            editGoodsForm:{
                goods_name:'',
                goods_price:'',
                goods_number:'',
                goods_weight:'',
                goods_cat:'',
            },
            editGoodsFormRules:{
                goods_name: [
                    { required: true, message: '请输入商品名称', trigger: 'blur' },
                ],
                goods_price: [
                    { required: true, message: '请输入商品价格', trigger: 'blur' },
                ],
                goods_number: [
                    { required: true, message: '请输入商品数量', trigger: 'blur' },
                ],
                goods_weight: [
                    { required: true, message: '请输入商品重量', trigger: 'blur' },
                ],
            },
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', {
                params: this.queryInfo
            })

            if (res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败！')
            }

            this.$message.success('获取商品列表成功！')
            console.log(res.data)
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        //根据id查询商品信息
       async editById(id){
             //根据id查询商品信息
             const { data: res } = await this.$http.get('goods/' + id)
            if (res.meta.status !== 200) {
                return this.$message.error('查询商品信息失败！')
            }
            this.editGoodsForm = res.data
            this.editGoodsDialogVisible=true
        },
        editGoodsDialogClosed(){
           //关闭对话框则清空表单数据
           this.$refs.editGoodsFormRef.resetFields()
        },
        //修改商品信息提交
        editGoodsInfo(){
            this.$refs.editGoodsFormRef.validate(async valid => {
                if (!valid) return
                // 可以发起修改用户的网络请求(axios)
                const { data: res } = await this.$http.put(
                    'goods/' + this.editGoodsForm.goods_id,this.editGoodsForm
                )
                if (res.meta.status !== 200) {
                    this.$message.error('修改商品失败！')
                }else{
                    // 隐藏修改商品的对话框
                    this.editGoodsDialogVisible = false
                    // 重新获取商品列表数据
                    this.getGoodsList()
                    //提示修改成功
                    this.$message.success('更新商品信息成功！！！')
                }   
            })
        },
        //根据id删除商品
        async removeById(goods_id) {
            const confirmResult = await this.$confirm(
                '此操作将永久删除该商品, 是否继续?',
                '提示',
                {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }
            ).catch(err => err)

            if (confirmResult !== 'confirm') {
                return this.$message.info('已经取消删除！')
            }

            const { data: res } = await this.$http.delete(`goods/${goods_id}`)

            if (res.meta.status !== 200) {
                return this.$message.error('删除失败！')
            }

            this.$message.success('删除成功！')
            this.getGoodsList()
        },

        goAddpage() {
            this.$router.push('/goods/add')
        },
    }
}
</script>
  
<style lang="less" scoped>

</style>
  